Wire-taping machine.



T. MIDGLEY. WIRE TAPING WlAcHmE. APPLlCATlON man MAR. 18.191 4.

Patefited Apr. 18, 1916" 4 SHEETS-SHEET 1.

T- MIDGLEY.

WIRE TAPING MACHINE.

APPLICATION FILED n. l8. m4.

Patented Apr. 18, 1916.

4 SHEETS-SHEET 2.

Thomas N/fag/qQ Patented Apr. 18, 1915.

4 SHEETS-SHEET. 4.

' T. MIDGLEY.

WIRE TAPING MACHINE. APPLICATION FILED MAR. 18. 1914'.

I To all whom it may concern:

irnonaslmnennmlor woa rnxneron, onro, essrsnca so IVIGBGAN'8; wniennorDETROIT, MlECHIGAN, A CORPORATION OF MICHIGAN.

WIRE-TAPING MACHINE.

Be it known that I, THOMAS MIDGLEY, a citizen of the United States,residing in Worthington, county of Franklin, and State of Ohio,-haveinvented certain new nd useful lmprovements in lVire-Taping ilac hines,of; which the following is a full,

clear, and exact description.

This invention relates-to-machines for applying a spiral wrapping oftape to wire hoops for use in the manufacture of tire shoes 'orcasin'gs.In constructing ,these hoops itxis' customary to coil a cont nuous wirein a plurality of convolutlons, and couple the ends by twisting themtogether,

the hoop so. formed- Mingv then trained over two revolulole pulleyswhich are thereupon.

moved apart to tauten the hoop, and during passage of the hoopojv er thepulleys inthe nature of a belt, layer of tapeis helically Woundthereupon to anchor the convolutions together. A disadvantage found inthis method of manufacture is that the two pulleystend totension theconvolutions of the hoop. unequally, thus impairing the (la--.rabilityand life of the hoop.

To obviatethe above disadvantage I pro- 'vide a machine in which anendless series of radially movable concentric pulleys are employed toexpand. the {hoop-to nearly the contour of. a circle,incontradistinction to the elongated. hoop contour assumed Whena pair ofpulleys are employed, whereby the various .co'nvolutio'ns, of the hoopare more equally tensioned than usual.

In the accompanying drawings, 1 have illustrated oneforni of the.machine which may be usediu practising myinvention, in which drawings: 1a

Figure l is a plan view of the machine; Fig. 2 is ahmgitudinal sectionalview of the machine; Fig. 3 is a longitudinal sectional view taken in aplan view at a right angle to that shown in Fig. 2; Fig. i, is anenlarged detail plan view showing the shuttle; Fig. ,5 is acrossLsecti-onal view on the line 5--5, Fig.4.; Fig..6 is acrosssectional view on the line 6--6, Fig. 5'; Fig.4- is a crosssectionalview onthe line 7 7, Fig. 4L.

Referring to the drawings, 10 designates the. frame of the machine.Centrally disposed within the frame isan upright" shaft 11 which isdriven from a drive shaft 12 by means of meshing worm gears 13 and '14.

The drive shaft is actuated bye motor 15 v and rotation of the driveshaft is controlled Specification of Letters Patent.

bya footpedal 1(5 and shift link mechanism l7 which operate a frictionclutch 18 on the drive shaft.

Fixed to the upright shaft is abevel 19 zwhich meshes with and drivesbevel gears 20 carried by radially disposedwstub shafts 21 which aresupported in bearingsaz depending from radial1yextended arms 23 -wliichbridge and are secured to th'e'topl of;

the frame as shown at 24. Mounted toslfde longitudinally on'e'ach shaftis. a bearing, which is equipped with a guide flange, 26 that works in aguide slot fijTformed in the related arm 23, the bracket carrying apulley 28 which is driven from the related shaft 21 by meshing bevelgears 29 and 30.

In the present embodiment an endless or: circular series of five pulleys28 are shown, the same being spaced equally apart and being adapted tosupport the wire hoop. v from the inside, as shown in Fig.1, thu

shaping the hoop nearly in the contour of circle. During rotation'of'the shaft 11, the shafts 21 rota-tethe pulleys 28 to, feed the lwhich will presently be described. f Tomove the pulleysradiallyoutwarclto tautcn the convolutions of the 'hoop,..thebearings-.25 are pivot-ally connected to fretical, movement on theupright shaft 11. A lever 3% is pivoted at the-outer end onthe theframe. An air pipe 39'is connected to vmotor to the atmosphere whenswung openzfl'oo .in the opposite direction. When the vatve is opened toadmit air to themotorthe" is ton actuats the lower 3% to raise thecollai' 33 whereby the til-nil are; extenfledi lats .erally and shiftthe bearings :i and their. pulleys 28 outwardly, this outward pressureof the endless series of pulleys againstEthe hoop from the insideexpanding and yieldably holding the hoop expanded, "whereby theconvolutions thereof arefequally tensioned. When the valve is opened tovent the motor to the atmosphere, a spring ,4=0'

Patented'AprdS,1916.

.Applicationfiledmarch 13,1914; Seria1Io.825,485. i

.80 1100p in a circular path through af'shuttle .85 spective shift links32 that converge downward to and are pivotally' connected to a commoncollar 33 that is mounted for ver-.

v.90 frame, as shown at 35, and is' ipivoted at the inner end 'to thecollar, as shown at 36.: ever is preferably connected to the'pis torl,37 of a compressed air motor 38fcarjried by the motor and is controlledby 1a twowa'y valve l0 which establishes communication between ther'n'otor and an air supplywhen swung open in one direction,andvents theLime;

is Wound progresses. in 21 carried by the web i3. to the guide flange 26of the adjacent pulley 28, the arm having ing d2 carried on a web l3that connects a pair of the radial arms the shuttle being driven from a.drive shaft H by means of meshing gears 25 and d6. Both the shuttle andits gear 45 areslotted radially to their axis as shown at 47 to receivethe hoop 31. Theshuttle carries an integral transverse arm 48 to whichis secured a, spindle if.) which receives-a spool 50 of tape 51, thespool being removably dle by a. cap 52. The spindle.,extends at anangleof approximately 45 degrees fro the axis ofthe shuttle, and duringrotationof the shuttle carries the tape spool circumferentially aroundthe hoop, whereby the tape helically on thehoop as the latter paththrough the shuttle n the direction of the arrow head in Fig. 4. -Tomove the shuttle radially in unison with the pulleys the bearing 42 ofthe shuttle isdove-tailed to slide on a guide rib An arm 53 is fixed alongitudinal slot 5 which slidably receives a pin 55 carried by theshuttle bearing. During radial movement of the shuttle the arm 53 willsimultaneously carry the shuttle radially so that the shuttle ispositioned at all times to receive the hoop. The drive shaft iiisfeathered to slide in its bearing 56 to acconnnodate this radialmovement of the shuttle, the shaft being driven by a chain drive 57 froma stub shaft 58. which is in turn driven from the main drive shaft 12 bya gear-drive 55).

In operation the wire hoop is trained over the pulleys 28 and throughthe shuttle +1. The machine is then set in operation by opening the airvalve 33jwhereupon the pulleys and shuttle are simultaneously movedradially outward and uniformly tauten the wire convolutions of the hoop.The end of the tape is now pressed onto the hoop by the operator and thepedal-l-(i'depressed, whereupon the pulleys are rotated and carry thehoop in a circular path through the shuttle, which is simultancouslyrotated to apply the tape helically on the hoop. After a round of tapehas been applied to the hoop, the pedal is released to halt the travelof the hoop, the tape is then cut, and the air is then released towithdraw the pulleys in- \vardly and permit removal of the taped hoop. I

Having thus described my invention, what 1 claim and desire to haveprotected by Letters Patent is:

1. In a machine of the class described, a

secured on the spin-' nally of said driven shafts to circular series ofpulleys for supporting a hoop trom the inside, and pneumatically 0perated means for simultaneously moving the outward and yieldably holdpulleys radially outward position to tauten mg them in this the hoop.

2. In a machine circular series of radially mo able pulleys forsupporting a hoop from the inside, a shuttle movable radially inunisonwvith the pulleys for applying tape to the hoop, and means forrotating the pulleys on their axes to advance the hoop in a paththrougl'i the the frame fora-adial sliding movement, a

drive shaft concentric with said pulleys, radially d sposed shaft-sdriven from the drive shaft for rotating said pulleys, and means formoving the pulleys in unison longituditauten the hoop.

5. In a machine of the class described, an endless series of pulleys forsupporting a hoop from the inside, means for spreading the pulleys apartradially to tauten the hoop, a shuttle for applying tape to the hoop,and

of the class described, a'

an arm carried by one of the pulleys and operatively connected with theshuttle for moving the shuttle radially in unison with said pulley.

(i. In a machine of the class described, a revoluble shuttle, an endlessseries of revoluble pulleys for supporting a hoop from the inside andmoving the hoop is nearly a circular path through the shuttle. and atape supply spool carried by the shuttle to one side of and at an angleto the path of the hoop for applying a wrapping of tape helically to thehoop.

7. In a machine of the class described, a fran'ic, an endless series ofradially movable pulleys on the frame for supporting a hoop from theinside, a shuttle mounted for radial sliding movement on the frame,means for moving said pulleys and said shuttle radially in unison, andmeans for simultaneouslv rotating said pulleys and said shuttle on theiraxes.

Signed at Detroit, county of Wayne, State of Michigan, this 13th day ofMarch, 1914-.

. THOMAS MIDGLEY.

Witnesses l). LA BusonnwsuY, J. H. Swir'r.

